Sixfab Cellular Unavailable

Hello.

I just received my Sixfab 4g LTE modem with a Telit LE910C4 card. After doing the installation, it shows my device online but the cellular status is unavailable. Running “lsusb” I see the Telit device. Also, occasionally when I run ifconfig I see the wwan0 interface but then it goes away after a short time. Any help is appreciated!

Hello @jp.tal

However the provided logs are not enough to spot the issue.
Since you are using the Sixfab CORE solution could you please share the logs stored in /home/sixfab/.core/logs/?
Kindly dm the email associated to the Sixfab Connect Platform or the ICCID of the device?

cm-log in the logs are
2024-09-05 09:43:28,778 → default.py INFO ECM Connection is initiating…
2024-09-05 09:43:31,066 → default.py INFO ECM is initiated.
2024-09-05 09:43:41,277 → cm.py ERROR check_internet() → No internet!
2024-09-05 09:43:41,478 → diagnostic.py INFO Diagnostic is working…
2024-09-05 09:43:43,156 → default.py INFO Checking the network is ready…
2024-09-05 09:43:43,557 → default.py INFO Network is registered
2024-09-05 09:43:44,627 → diagnostic.py INFO Creating diagnostic report on → /home/sixfab/.core/diagnostics/diagnostic.yaml
2024-09-05 09:43:44,829 → default.py INFO Connection interface is reset…
2024-09-05 09:43:44,843 → default.py INFO Interface wwan0 is down.
2024-09-05 09:43:49,882 → default.py INFO Interface wwan0 is up.
2024-09-05 09:44:10,035 → cm.py ERROR reset_connection_interface() → Modem interface couln’t be detected.
2024-09-05 09:44:12,366 → default.py INFO Connection interface is reset…
2024-09-05 09:44:12,383 → default.py INFO Interface wwan0 is down.
2024-09-05 09:44:17,421 → default.py INFO Interface wwan0 is up.
2024-09-05 09:44:37,575 → cm.py ERROR reset_connection_interface() → Modem interface couln’t be detected.
2024-09-05 09:44:39,926 → default.py INFO Connection interface is reset…
2024-09-05 09:44:39,942 → default.py INFO Interface wwan0 is down.
2024-09-05 09:44:44,980 → default.py INFO Interface wwan0 is up.
2024-09-05 09:45:05,133 → cm.py ERROR reset_connection_interface() → Modem interface couln’t be detected.
2024-09-05 09:45:06,589 → default.py INFO USB interface is reset…
2024-09-05 09:45:07,931 → cm.py ERROR check_internet() → No internet!
2024-09-05 09:45:08,132 → cm.py INFO Jump to reset_modem_hardly for 2nd trial of rebooting modem!
2024-09-05 09:45:08,132 → default.py INFO Modem is resetting via hardware
2024-09-05 09:45:08,140 → sbc_support.py WARNING gpio_init → export gpio
2024-09-05 09:45:08,342 → sbc_support.py ERROR gpio_init →
Traceback (most recent call last):
File “/opt/sixfab/core/manager/core_manager/helpers/sbc_support.py”, line 34, in gpio_init
check_output(comm, shell=True)
File “/usr/lib/python3.11/subprocess.py”, line 466, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3.11/subprocess.py”, line 571, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command ‘echo out > /sys/class/gpio/gpio26/direction’ returned non-zero exit status 2.
2024-09-05 09:45:08,456 → sbc_support.py ERROR modem_power_disable →
Traceback (most recent call last):
File “/opt/sixfab/core/manager/core_manager/helpers/sbc_support.py”, line 61, in modem_power_disable
check_output(comm, shell=True)
File “/usr/lib/python3.11/subprocess.py”, line 466, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3.11/subprocess.py”, line 571, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command ‘echo 1 > /sys/class/gpio/gpio26/value’ returned non-zero exit status 2.
2024-09-05 09:45:10,468 → sbc_support.py WARNING gpio_init → export gpio
2024-09-05 09:45:10,672 → sbc_support.py ERROR gpio_init →

There is an issue due to change in gpio management in the latest Raspberry PI.
It is recommended to use Raspberry Pi OS version, released on March 15, 2024

Switching to that older version worked. Thanks!